One day, Daisuke, a reporter, visits an old Western house on the hill. There are Sumi, the owner of the house, and five other girls. "You are a selected man. Yes, you can make a baby with any of us and get everything here...." Though Daisuke still can't believe it, he starts staying at her house. Erotic and deep relationship... What is the myth of this house? What will happen to Daisuke?

Yuuta is a guy in his high school senior year. While he prepares for his next entrance examination for college during the summer break, his cousin Kei ??does him "the favor of studying with him", but it turns out to be somehow different than what our hero expected.

In the near future, mankind is on the brink of extinction owing to a drastic decline in the birth rate of males. To counter the declining overall birth rate, the country has introduced a new law and the Free Sex Licence. This Licence can be presented to any woman, anytime, anywhere, and that woman is legally bound to have sex with its bearer. One night, Takumi receives one such Free Sex Licence and his life changes drastically. He has sex with Sara, a genius who's also curious about sex, and with Misaki, cousin of his friend Rin. Rin, who's in love with Takumi, is extremely agitated by these occurrences. However, when Takumi inadvertently displays the licence in the classroom, Rin's first time is done in public...